Improvement in lamp-flame extinguishers



' UNITED STATES PATENT OFFICE.

CHARLES T. COLBY, OF NEWBURYPORT, MASSACHUSETTS.

Specification forming part of Letters Patent No. 186,414, dated January 23, 1877 application filed November 24, 1876.

To all whom it may concern: I

Be it known that I, CHARLES T. OoLBY, of Newburyport, in the county of Essex and State of Massachusetts, have'invented a new and useful Lamp-Flame Extinguisher; and do hereby declare the same to be described in the following specification, and represented in the accompanying drawingsfof. which Figure l is a side View and Fig. 2 a longi tudinal section of it. Fig. 3 is an under-side view of its ajutage. Fig. 4. is a vertical section of an ajutage for upward discharge of air.

The article in question is for putting out the flame of the wick of an Argand burner, or any lamp provided. with a glass chimney; and itis mainly composed of an elastic hollow bulb or handle, a tube bent downward near its upper end, and an ajutage or discharging-nipple, all being essentially as represented.

In the drawings, A denotes the elastic hollow bulb, made usually of vulcanized india rubber or composition containing caoutchouc, it being surmounted by a metallic connection or head, B, concentrically within which is a tube, a, upon which the neck b of the bulb A fits closely, while the neck is encompassed by the ferrule or tubular part c of the said head. A pipe or tube, 0, screwed at its lower end into the head and bent near its upper end, as

represented at d, has a screw, 6, to receive and hold an ajutage, D. This .ajutage isa hollow bulb or teat, having a female screw, h,

in its mouth, and also having a central hole or perforation, c, and two slits, fg, crossing such hole at right angles to each other, all

being arranged as shown.

When air is blown from the pipe 0 into such ajutage, such air will be discharged therefrom through the hole and slits, it flowing downward from the hole and laterally and downward from the slits. The peculiar discharges or currents of air, when the ajutage is within the chimney of a lamp, operate to excellent advantage in extinguishing the Sometimes I make it as shown in Fig. 4- I that is, without either the slits or central orifice, but-with a series of holes, 1, in its upper part, so as to discharge air upwardlinstead of downwardwithin a chimney, when the extinguisher may be in use.

A sudden discharge of air upward Within the upper part of a lamp-chimney, I have found, will induce a consequent sudden inrush of air into the chimney at its lower end, to an extent to generally extinguish the flame of the Wick.

In using the extinguisher, a person should grasp the elastic bulb in his right hand, and next insert the ajutage down into a lampchimney at the upper end thereof. By quickly compressing the bulb, the air therein will be expelled and driven through the tube and intoand out of the ,ajutage, so as to extinguish the flame of the wick within such chimney.

I usually make the tube three or more feet in length, to render it serviceable for chandeliers and side or wall lamps.

I claim 1. As a new article of manufacture for the purpose described, the lamp-flame extiuguisher, as composed of the elastic bulb A, the metallic duplex tubular connection or head B, the tube 0, and the ajutage D, allconstructed and arranged substantially as set forth.

2. The ajutage, as provided with the central orifice e and the crossed slits f g, arranged and for use with the tube and bulb,

as specified.

CHARLES T. COLBY. Witnesses:

' R. H. E1)1)Y,

J. R. Snow. 

